In a rally in Youngstown, Ohio on Monday, Donald Trump called for "extreme vetting" measures to fight terrorism while Joe Biden hit the campaign trail with Hillary Clinton in Scranton, Pa., where he criticized Trump's plans as "un-American."

Tiffany Trump from the 2016 Republican National Convention​: "If you do what you love, hold nothing back and never let fear of failure get in the way, then you've pretty much figured out the Trump formula."

Bernie Sanders is just one candidate for the Republican nomination for U.S. President in a field that includes a tycoon and a neurosurgeon in addition to governors and congressmen. These candidates have a lot in common, but a lot MORE that separat

Ted Cruz is just one candidate for the Republican nomination for U.S. President in a field that includes a tycoon and a neurosurgeon in addition to governors and congressmen. These candidates have a lot in common, but a lot MORE that separates the